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The Bently Nevada 21504-000-016-05-02 is a component of the 7200 Series 5 mm / 8 mm Proximity Transducer System, a non-contacting gap-to-voltage measurement system designed to measure the distance between the probe tip and an observed target. The system supports both static and dynamic displacement measurements, providing non-contact measurement for machinery monitoring applications.

The 7200 Series Proximity Transducer System converts changes in the physical gap between the probe tip and target surface into a corresponding voltage signal. This operating principle allows the system to perform accurate displacement measurements without requiring physical contact between the probe and the monitored target.

The system can measure both static distances and dynamic distances. Its general application is any requirement for accurate, non-contacting displacement measurement, while its most common applications are shaft position and shaft vibration measurements on rotating and reciprocating machinery.

The 7200 Series 5 mm / 8 mm system is designed for use with a broad range of machine types. The specified applications include gas turbines, steam turbines, compressors, pumps, centrifuges, electric motors, and generators, providing a common proximity measurement approach across different types of rotating and reciprocating equipment.

Frequently Asked Questions

Q : What is the Bently Nevada 21504-000-016-05-02?

A: It is a 3300 XL 8mm reverse-mount eddy current proximity probe.

Q : What does "21504" mean in the part number?

A: It designates the 3300 XL 8mm reverse-mount probe series with 3/8-24 threads.

Q : What does a Proximitor output reading near -24 VDC mean?

A: It indicates an open circuit, a loose connection, or a probe gapped too far.

Q : What does the second modifier "-016" indicate?

A: It indicates the probe case length, which is 1.6 inches.

Product Applications

Power and Energy: Used for monitoring shaft vibration, shaft displacement, and speed in steam turbines, water turbines, and generator sets in power plants.

Oil and Gas: Used in large centrifugal compressors, large pumps, fans, and gas turbines in oil refineries and chemical plants.

Metallurgy and Mining: Used in blast furnace blowers, large rolling mills, and heavy transmission machinery in steel plants.

Chemical and Heavy Industry: Used for preventative maintenance and condition monitoring of various large rotating equipment operating continuously.